Sodium in the structure of Bovine Heart Cytochrome C Oxidase in the Fully Reduced State (pdb 2eij)

The binding sites of Sodium atom in the structure of Bovine Heart Cytochrome C Oxidase in the Fully Reduced State (pdb code 2eij). This binding sites where shown with 5.0 Angstroms radius around Sodium atom. The 2eij structure was solved by K.MURAMOTO, K.HIRATA, K.SHINZAWA-ITOH, S.YOKO-O, E.YAMASHITA, H.AOYAMA, T.TSUKIHARA, S.YOSHIKAWA, with X-Ray Crystallography technique, brief refinement statistics is given in the table below: